Optical detection device of a self-guided flying vehicle

Patent metadata

Field	Value
Publication number	US-2022018633-A1
Application number	US-201917413313-A
Country	US
Kind code	A1
Filing date	Dec 19, 2019
Priority date	Dec 20, 2018
Publication date	Jan 20, 2022
Grant date	—

Abstract

An optical detection device is included in a self-guided flying vehicle, the self-guided flying vehicle being composed of a cone located at the head of the self-guided flying vehicle, a propulsion device located at the rear of the self-guided flying vehicle and a body located between the cone and the propulsion device. The optical detection device includes at least two portholes disposed in a collar on the periphery of the body of the self-guided flying vehicle.

First claim

1 . An optical detection device included in a self-guided flying vehicle, the self-guided flying vehicle being composed of a cone located at the head of the self-guided flying vehicle, a propulsion device located at the rear of the self-guided flying vehicle and a body located between the cone and the propulsion device, wherein the optical detection device comprises at least two portholes disposed in a collar on the periphery of the body of the self-guided flying vehicle, and it further comprises, for at least some of the portholes:
an optical system associated with each porthole, the optical system being placed behind said porthole and comprising a curved mirror reflecting the optical signal towards a plane mirror, at least one optical sensor whereon at least one optical signal reflected by a curved mirror and a plane mirror is directed, the optical sensor being connected to an information processing device.

2 . The optical detection device according to claim 1 , wherein the portholes are inclined with respect to the propagation axis of the self-guided flying vehicle so that the angle formed by the normal to the surface of the portholes and by the propagation axis of the self-guided flying vehicle is between 10° and 60°.

3 . The optical detection device according to claim 1 , wherein the portholes have a plane surface.

4 . The optical detection device according to claim 1 , wherein the optical detection device further comprises, for each optical sensor, a focusing system placed between the plane mirror and the optical sensor.

5 . The optical detection device according to claim 1 , wherein all the portholes have identical optical characteristics, all the optical systems associated with the portholes direct and focus the optical signals received through the portholes onto the same optical sensor, and the optical sensor generates information representing all the optical signals received through the portholes.

6 . The optical detection device according to claim 5 , wherein the optical sensor is integrated in a filtering module comprising at least two spectral filters of different spectral bands, the filtering module extracts, from the optical signals received, a filtered optical signal in each of the spectral bands and generates information representing each filtered optical signal.

7 . The optical detection device according to claim 1 , wherein at least one of the portholes has optical characteristics different from the other portholes, in that all the optical systems associated with portholes with identical optical characteristics direct and focus the optical signals received through the portholes onto the same optical sensor and optical systems associated with portholes with different optical characteristics direct and focus the optical signals received through the portholes with different optical characteristics onto different optical sensors.

8 . The optical detection device according to claim 7 , wherein the portholes with different optical characteristics have different spectral bands.

9 . A self-guided flying vehicle, wherein it comprises an optical detection device according to claim 1 .

Assignees

• Safran Electronics & Defense

Inventors

• Davenel Arnaud
• Marie Daniel

Classifications

• G01S7/4816

  of receivers alone · CPC title

• F41G7/2293 Primary

  using electromagnetic waves other than radio waves · CPC title

• F41G7/26

  Optical guidance systems · CPC title